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An adit (from Latin aditus, entrance) [1] or stulm [2] is a horizontal or nearly horizontal passage to an underground mine. [3] Miners can use adits for access, drainage, [4] ventilation, and extracting minerals at the lowest convenient level. [1]
Blackdamp is the name given to a mixture of carbon dioxide and nitrogen. [1] Blower. A blower was a source of firedamp issuing into the mine from a fissure in the coal. [6] The term "feeder" was used in some areas. The issue of gas was often audible, hence the name. Brattice
Many areas listed have parts where fees do not apply. Each year, there are a handful of free entrance days when entrance fees are waived at these areas. [3] Fees are given on a per-vehicle or per-person basis. Per-vehicle fees admit all occupants of a private passenger vehicle, generally for 7-days (unless otherwise noted).
Operating in a "room and pillar", also known as "bord and pillar" system, where the mine is divided into a series of 20-to-30-foot (5–10 m) "rooms" or work areas cut into the coalbed—it can mine as much as 14 tons of coal a minute, more than a non-mechanised mine of the 1920s would produce in an entire day.
It was linked by one or more tunnels to at least one other mine entrance situated on land close to the high water mark. The pit was a significant part of a mining complex developed by Sir George Bruce of Carnock and later his son, George Bruce II of Carnock, and grandsons, Edward Bruce 1st Earl of Kincardine and Alexander Bruce 2nd Earl of ...
She also pointed out that many of Europe’s most remarkable religious buildings charge an entrance fee. Indeed, access to Barcelona’s Sagrada Familia is €26 while sightseeing tickets for St ...
Now the Mine Shaft sign is back above the entrance to the end zone sections 14 and 15, and 10 minutes before UTEP's 7 p.m. kickoff against Southern Utah on Sept. 7, ...
The southern section of Old Mine Road provides a key access from Interstate 80 and several of the park's recreation and cultural sites. It also serves as an important route for emergency services ...